Hans christian ohlsen



(No Model.)

H". 0. OHLSEN.

FIFTH WHEEL.

Patented Aug. 14, 1883.

AI/esz I 1 551-25 3 UNITED STATES PATENT OFFICE.

HANS CHRISTIAN OHLSEN, OF CINCINNATI, CHIC, ASSIGNOR TO HAYDOCK, OF SAMEPLACE.

FIFTH-WHEEL.

SPECIFICATION forming part of Letters Patent No. 283,139, dated August14, 1883.

Application filed'January 17, 1883. (No model.)

To aZZ whom it may concern.-

Be it known that I, HANS Onnrsrmn OHLSEN, of Cincinnati, Hamiltoncounty, Ohio, have invented a new and useful Improvement in Vehicles, ofwhich thefollowing is a specification.

My invention relates to a construction of the king-bolt, head-blockplate, &c.', which combine simplicity and cheapness with security.

In the accompanying drawings, Figure 1 is an under side view of thehead-blockand its accessories. Fig. 2 is a front elevation thereof. Fig.3 is a fore-and-aft section of the fifth wheel and adjuncts. Fig. 4 is'aperspective view of the head-block plate and of the upper member of thefifth-wheel, together with portions of the head-block and of theperches.

Fig. 5 is a perspective view of my improved king-bolt and of themiddleportionof the head-block plate viewed from below. Fig. 6

is vertical section of the head-block plate on the line w m, Fig. 5. V

The following parts may be of the repre sented or of any customary orsuitable construction, to wit: front wheels, A, axle B, axlebed 0, lowermembers, D, and upper member, E, of fifth-wheehspring and spring-bar FG, body-loops H, body I, perches J, stay-brace or guard-iron K, clips L,and screws, bolts, or

rivets M. I r

My head-block plate N has the customary perforated fore and aft lugs, n,for the springclip, perforations n for the rivets which fasten the uppermember of the fifth-wheel, and perforations n for the screws whichattach said plate to the head-block. From the rear edge of plate Nproject as many lugs O as there are perches, whose forward extremitiesare attached to said lugs by rivets that pass the -1nanner shown,terminates in an eye, It,

through orifices in the latter. Each lug has two lips, 0, which embracethe perches on the sides thereof.

e areorifices in the upper member of the fifth-wheel, for rivets whichattach it tothe perches, and e. is an orifice for the rivet whichattaches to saidupper member the rear extremity of the stay-brace orguard-iron K, which, extending forward and downward in ,which receives astud, 19, that extends downward from the plate 1?, which is perforatedfor the screw-threaded clip extensions (1 of my safety king-b olt Q. Theextensions q and stud 1) receive nuts- (See Figs. 2, 3, and 5.)

From the under side of the head-block plate project two lugs, R, whoseopposing surfaces are undercut, as shown at r in Fig. 6, to receivesponding dovetail projections, g, from the kingbolt, which having beeninserted with its projections directed fore and aft, (see Fig. 5,) andthen turned one quarter around, and the parts being bolted together, asshown in Fig. 3, the king-bolt becomes securely locked in positionwithout at all interfering with the restricted rotations of theking-bolt within the headblock,.which take place when the vehicle istraversing a curve. A prolongation, g, from the king-bolt, extendingupward through the head-block, 'and through the lower limb of thebody-spring, is riveted in a countersink in the latter, so as to bindall members of the fifthwheel and their adjuncts firmly together, andalso so as to afford complete security against the droppingoutordislodgment of the kingbolt.

I claim as new and of my invention- N, having recessed socket R, and thekingbolt Q, having lateral projections q to fit in the socket,head-block, as set forth.

' 2. A king-bolt for fifth-wheels, formed with screw-threadedclip-extensions q q, dovetail lateral projections 11 f, and prolongationq, as set forth.

3. A. head-block plate for fifth-wheels, formed with fore and aft lugs,n n, perforations n n and n'n, lugs O O for the perches, hav- I ing lips0 0 and perforations 0 0, and the lugs plate, as set forth. j

In testimony of which invention I hereunto set my hand.

. HANS CHRISTIAN OHLSEN. Attest: I

GEO. H. KNIGHT,

J OHN A. PENN.

THOMAS T.

and retain and constitute the socket of corre R R, forming socket on theunder side of the 1. The combinationof the head-block plate and aprolongation, q, to fit in the

